Radiator



R. V. BINGAY.

RADIATOR.

APPLICATION FILED MAR. an 192:.

2 snzus-suzn 1.

Patented Nov. 28,

R. v. BINGAY.

RADIATOR.

'A PPLICATlON FILED MAR. 31,192].

1,437,039 Patented Nov. 28, 1922.

2 SHEETS-SHEET 2.

Patented Nov. 28, 1922.

UNITED STATES PATENT OFFICE.

ROBERT V. IBINGAY, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO PITTSBURGH TRANSFORMER COMPANY, A CORPORATION OF PENNSYLVANIA.

RADIATOR.

Application filed March 81, 1921. Serial No. 457,282.

To aZZ whom it may com-em:

Be it known that 1, ROBERT V. BINGAY, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Radiators, of which the 'following is a specification.

This invention relates to radiators and particularly to radiators for circulating and cooling a fluid, such as the oil of an oil cooled transformer tankor the like. The object of the invention is to rovide a radiator that will be simple and inexpensive in formation and durable in service having the radiating surfaces exposed at all points so as to avoid the accumulationof molsture in inaccessible recesses and the resultant rusting and weakening of the radiator walls. Further objects of the invention in making the radiator li ht in weight and at the same time strong an self supporting, will appear from the following specification taken in connection with the accompanying draw-v ings, in which Fig. 1 is a plan view of a main tank provided with auxiliary radiator tanks illustrating one embodiment of the invention.

Fig. 2 is a horizontal sectional view through one of said radiators.

Fig. 3 isa vertical sectional view of the same.

Fig. 4 is a perspective view of an n er portilon of a radiator, showing a modi ed etai Fig. '5 is a view similar'to Fig. 1 but illustrating a modification.

Fig. 6 is a vertical sectional view of the radiator shown in Fig. 5. p

Fig. 7' is a horizontal sectional view of the radiator shown in Fig. 5, and

Figs. 8, 9 and 10 are elevational views illustrating methods of connecting the radiators to the main tank.

In the specific embodiment of the invention shown in Fig. 1 a main tank T containing, for instance, transformer coils and core immersed in oil, is provided with radiators R connected to the tank T at the top and bottom to circulate the oil downward in contact with the coolin surfaces of the radiators. The radiators may be connected in a single series partially or wholly around the tank, for instance as shown on the right side of Fig. 1 and there may be a number of series of radiators at diflerent radial distances from the tank so as to be staggered with relation to each other, for instance, as shown to .the left in Fig. 1. Each radiator (as shown in Figs. 2%) comprises a body. ortion 10 in the form of an extended deep y corrugated tank with upper and lower connections to the main tank T. The body portions 10 are formed by notching steel sheets at the upper and lower edges and bending said sheets into corrugations 11 with the bottoms of the notches at their outer ends 12 and the spaces between the notches at their inner ends 13. The meeting edges of the sheets for instance, at 14 are turned over to form a V shaped groove between them and are welded together along this groove. With the body thus formed into generally c lindrical shape (Figs. 1-4) the edges of the notches then form inclined edges 15 between outer ends 12 and inner ends13 of the corrugations and by flattening outward the edges of ends 13 the inner ends of edges 15 are brought together. The remainder of these edges 15 are then turned over to meet along a line and are welded together as shown. Each corrugation 11 is rigidly arched over at its ends and protrudes outward with its surfaces exposed. The fiattened inner ends 13 form beveled rings at each end of the body 10 and into these the pipes 20 are set and welded along the line 21 to form a strong air-tight union. The pipes 20 may be bent inwardly as shown and provided with flanges 22 to be bolted to the flange 23 of the pipe section 24 welded into the side ofthe tank. Instead of the bent pipes 20 the cylinder 20' may be used as shown in F ig. 4 with a removable cap 25 and a separate connecting pipe'26, this constructionbeing used at the top or bottom or both. The radiator is thus a single corru ated body bent and welded into a rigid sel supporting unit in simple, inexpensive manner. There is no accurate machining or alining to be done and no delicate fitting of parts. The outer surfaces of the radiator are all exposed directl to the air circulation and easily accessib e so as to be readil inspected andkept coated against rust. A l the surfaces tend to shed rain and moisture and there are no inaccessible corners catching moisture so as to rust and weaken. The cross sectional area is large and unitary 'so of two radiators R anchorage for the supportin that circulation is maintained free from stoppage and obstruction and at the same time a large cooling area is provided by the extended surfaces of the corrugations. Access to the interior for inspection and clean ing may be had by simply removing the diator or caps and this will give a single direct opening through the radiator.

- The radiator may be of any desired shape, for instance, it may be generally rectangular in section as shown at R, in Figs. 5, 6 and T with corrugations at the sides and 31 at the endsif desired. With this radiator the formation is the same as for that of Figs. 1 to a, but the upper cylinders :20 will be'replaced by rectangular frames 32 with covers 33 preferably. removably clamped in place, and the lower end will have the bottom B welded in place along the line 34; and provided with drain cock The upper pipe connection 43 is welded into. the side of the frame 32 and the lower pipe connection dais welded into the side of the radiator body.

Where desired a plurality of radiators may be connected together as a unit to a common distributing pipe permitting the size and proportions of the unit to he'widely varied by varying the number ofradiators connected together. For'instance in Figs. 8 and 9 three radiators R are connected together to upper and lower pipes L5 which in turn are connected by pipes 4L7 to the source of fluid to be cooled. Each radiator R has its cylinders 46 welded to the pipes 4-.5 and the ends of this-pipeare closed by removable plugs 47. in 10 the cylinders 27 are connected by the intermediate pipe 48 which is connected to the fluid supply by pipe 4-9. I

The radiators are preferably supported by their pipe connections from the tank. Tl'ieir formation of bent and welded sheet steel makes them light in weight with relatively large exposed surface and fit the same the parts are relatively self supporting. The deeply corrugated structure gives all around and the arched corrugations welded into integral rings at each end further reinforce the body ,and provide firm connections.

1. The combination with a tank. containing a fluid to be cooled, of a radiator comprising a corrugated sheet body the ends of the corrugations being arched and welded to form a continuous end surface, pipe connections welded to the top end surface of the radiator and to the top of the tankrespectively, and similar pipe connectionsat the bottom of the radiator and tank.

2. The combination with a tank containing a fiuld to be cooled, of a radiator comprising the relatively small "weight of oil 111 the radiator. time each. radiator 1s a rigid unit 1n which stiffness 1 names a corrugated sheet body bent to form an inner passage of generally circular form. ends of the corrugations being arched o. welded to form a continuous end surface, 0. pipe connections extending outwardly from the top and bottom of the tank and iveicd to the top and bottom end surfaces respectively of the radiator.

The combination with a tank containing a fluid to be cooled, of a plurality of radiators ach comprising a corrugated sheet body, and pipe connections extending outwardly from said tank at the top and bottom thereof, to the top andbottom of each of said radiators respectively, said pipe connections for the several radiators differing in length whereby the radiators are positioned in staggered relation with respect to the tank.

i. The combination with a tank containing a fluid to be cooled, of prising a vertically corrugated sheet steel body havinga long relatively narrow central passage with channels extending outward therefrom. between said corrugations, fluid circulating connections at the ends of said bodycomprising an extension conforming to thegeneral shape of said passage and *elded in place at the end thereof, and a removable closure for the end of said extens s on giving access to the interior of said radiator. j

3. The combination with a tank containing fluid to be cooled, of a radiator comprising a corrugated sheet body bent to form inner passage of generally circular form, the ends of the corrugations being arched and welded to form a continuous end surface. cylindrical fluid circulating extensions welded to the top and bottom end surfaces respectively of said radiator, and pipe con nections from said top andbottom extensions to the'top and-bottom of the tank respectively.

I 6; The combination with a tank containa fluid to be cooled of a radiator connected to said tank by top and bottom pipes, the radiator having a central passage approximately of equal cross sectional area to the cross sectional area of. the connecting pipes, and'outwardly radiating corrugations to form outwardly projecting sheets of fluid radiating from said central. passage.

7. The combination with a tank contain-.

a fluid to be cooled, of a radiator comprising a corrugated sheet body the ends of the corrugations being arched and welded to form a continuous end surface, pipe connections welded 'to the top end surface of the radiator and to the top of the tank respectively, similar pipe connections at the bottom of the radiator and. tank, the said radiator being star shaped in cross section with a central passage approximately equal to the cross section of the pipe connections.

a radiator com- 8. The combination with a tank containing a fluid to be cooled, of a radiator comprising a sheet metal body portion having outwardly extending corrugations with arched ends Welded into a rigid ring at each end, and pipe connections from said tank adapted to support said radiator on said tank.

9. The combination with a tank containing a fluid to be cooled, of a radiating means 10 therefor, comprising a plurality. of radiators connected together to said tank, each radiator comprising a corrugated body portion of sheet steel having an end extension With a removable closure giving access to the in- 15 terior of the radiator.

ROBERT v. BINGAY. 

